He wants to punish me for what I've done, take me over his knee, discipline me with his whips and chains, mark my skin and make me his.

It wasn't my smartest idea - creating a private social media account where I posted my secret fantasies about my billionaire boss, Grayson Carlisle. But who could blame me? Grayson is six-foot-three of chiseled perfection, with eyes so dark and deep you could drown. He's brilliant and beautiful, scarred and stoic, so gorgeous it hurts to look at him.

He's also a cruel taskmaster and a demanding boss.

When Grayson discovers the account, I'm completely humiliated - and sure I'll be escorted out of the office immediately.

But Grayson Carlisle doesn't want to fire me.

No, he wants to do something much worse.

He wants to punish me for what I've done, take me over his knee, discipline me with his whips and chains, mark my skin and make me his.

He wants to play my body and mess with my mind until I'm falling to my knees, begging him and calling him sir.

His heart is untouchable, his secrets and dark past creating a fortress I'll never be allowed to penetrate.

But as he pulls me under his spell, I realize there's something much harder than being Grayson's assistant. It's trying not to fall in love with him.